One-step formed full-lining composite plate blank submersed nozzle and manufacturing method thereof

The invention discloses a one-time forming full-lining composite plate blank submersed nozzle which comprises a nozzle body, a slag line, an inner hole lining and a side hole lining. A groove is formed in the outer circle of the lower portion of the nozzle body, the slag line is located in the groove, an inner hole lining is arranged in an inner hole of the nozzle body, a side hole lining is arranged in a side hole of the nozzle body, and the upper portion of the inner hole lining and the upper portion of the side hole lining are of an integrated structure. The manufacturing method of the one-step formed full-lining composite slab submersed nozzle comprises the following steps: (1) preparing a lining material; (2) mixing; (3) preparing a flour cake; (4) manufacturing a full lining; (5) manufacturing a submerged nozzle semi-finished product; and (6) manufacturing a submersed nozzle finished product. According to the slab submersed nozzle, safety accidents caused by steel penetration can be avoided. In addition